Experimental realization of a reference-frame-independent decoy BB84 quantum key distribution based on Sagnac interferometer
Abstract
Quantum key distribution (QKD) can generate secure key bits between remote users employing the features of quantum physics. However, a shared reference frame is necessary for QKD systems in most scenarios. A reference-frame-independent (RFI) scheme can tolerate the reference frame drifting between legitimate remote users, which is significant in the operation of relative moving terminals such as satellites and aircraft. We design and experimentally demonstrate an RFI-BB84-QKD system by joint encoding with the polarization and orbital angular momentum states of the photons. We use self-compensating fiber Sagnac interferometers to perform high-speed polarization modulation, and q-plates to passively manipulate the rotation-invariant photon states, which makes the system feasible for high-speed operation using off-the-shelf components.
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Ground-to-satellite key exchanges require sophisticated infrastructure for generation, transmission, and reception of quantum keys.
“ground-to-satellite key exchanges require sophisticated infrastructure for generation, transmission, and reception of quantum keys36,37.”
From Quantum-resistance in blockchain networks (2023) · cites this paper as [37]
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Quantum-resistance in blockchain networks
Allende, M., León, D. L., Cerón, S., Pareja, A., Pacheco, E., Leal, A., Da Silva, M., Pardo, A., Jones, D., Worrall, D. J., et al. (2023) · Scientific Reports · doi:10.1038/s41598-023-32701-6 · Cited by 109 · see citing works
“dation of the quantum states containing the keys [31]. Additionally, ground-to-satellite key exchanges require sophisticated infrastructure for generation, transmission, and reception of quantum keys [32,33]. The scalability of these networks depends on the development of quantum repeaters, which require very sophisti…”
Background
- Authors
- Li, Y.-P., Chen, W., Wang, F.-X., Yin, Z.-Q., Zhang, L., Liu, H., Wang, S., He, D.-Y., Zhou, Z., Guo, G.-C., & Han, Z.-F.
- Affiliations
- University of Science and Technology of China (CN)
- Corresponding author
- Chen, Wei
- Wang, Fang-Xiang
- Yin, Zhen-Qiang
- Zhang, Li
- Liu, Hang
- Wang, Shuang
- He, De-Yong
- Zhou, Zheng
- Guo, Guang-Can
- Han, Zheng-Fu
- ORCID
- Venue
- Optics Letters
- Publisher
- Optica Publishing Group
- Published
- 2019-09-10
- Volume
- 44
- Issue
- 18
- Pages
- 4523
- ISSN
- 0146-9592 (ISSN-L)
- 1539-4794
- OpenAlex
- W2972477125
- Cited by
- 30
- References
- 29
- Citations by year
- 2026: 3 · 2025: 2 · 2024: 3 · 2023: 5 · 2022: 4 · 2021: 7 · 2020: 6
- FWCI
- 1.94
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Optics Letters (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Basic Research Program of China (2018YFA0306400)
- National Natural Science Foundation of China (61622506, 61627820, 61675189, 61822115)
- Anhui Initiative in Quantum Information Technologies (AHY030000)
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Orbital Angular Momentum in Optics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Semiconductor Quantum Structures and Devices
- Keywords
- quantum key distribution, BB84 protocol, Sagnac interferometer, orbital angular momentum, polarization encoding, joint encoding, q-plate
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